Most probably are unskilled, but there are going to be those who have skills who either can't find work in their native countries, or can make much higher wages in the US. Some will risk the journey to make the higher wages available here. I'm also sure it's not just the farming lobby that wants illegals. Construction moguls benefit from it as well since most construction workers are contractors working for contractors so the Construction industry doesn't have to get it's hands dirty.
9/11 was a blip, if anything. The number of illegals living in the US has been steadily increasing since the 80's. http://www.pewresearch.org/fact-tank/2018/12/03/what-we-know-about-illegal-immigration-from-mexico/
The opinions of the world aren't really going to weigh on Trump's legacy here. You may not be old enough to remember, but everyone hated Reagan too and thought he was leading us into world war 3 (sound familiar?) If anything, that's proof that he's right that the rest of the world has been taking advantage of the US and now they're mad that we're not wiling to take it anymore. I've been hearing for years, especially from friends and family from Asia that they can't believe how the US lets itself get taken advantage of. They think we're stupid, and we have been. If Trump can reverse that successfully, that alone will make him a pivotal president. We'll see how North Korea works out, but he's done more in less time than anyone else. And I don't even need to mention how the economy is humming along with unemployment the lowest in decades.

Sounds like it will be kind of like these....out in Katy
http://www.district-west.com/
https://www.seetimsell.com/blog/highly-anticipated-katy-boardwalk-district-underway/
https://www.lacenterra.com/
Long live Katyville!

LED bulbs are more complicated than incandescent bulbs and when there's more complication, there's more room for issues. I'm still waiting for the promised 22 year led light bulb. All mine seem to die within 2 or 3 years or they fade out so much that I have to replace them.

Nah...everyone knows Mount Houston was the first.
https://blog.chron.com/bayoucityhistory/2010/04/the-story-of-mt-houston/
It was leveled by developers but the community built there remains.
https://en.wikipedia.org/wiki/Mount_Houston,_Texas
You can go visit it. It's off 59 a couple of miles south of the beltway.

Not exactly. We don't know what skills they bring, since we aren't processing them and asking. Some may already be skilled at this trade or that, or at least have worked farms growing up. But what most certainly happens is that most will gain skills and become skilled labor in due course. Thus they are competing not just against high school dropouts but also high school graduates who don't further their education one way or the other.
It isn't the same lobby screaming about illegals and then wanting them to come. That would be nonsensical, and I can assure you the powers controlling the Democratic party (and the Republican party) in this matter aren't insane.
We tried amnesty, remember? That led to even greater numbers trying to come in. The proof is in the pudding on this one. All Trump had to do was talk about it when he got elected and the numbers trying to cross dropped dramatically. That's because suddenly amnesty became less certain and the likelihood of deportation became perceptibly higher. At any rate, anyone who comes here illegally should not ever, ever have the chance to become a citizen. Maybe make them permanent residents and they will be in the system and paying taxes (if they aren't already). And it's laughable that either party is going to use any increased tax revenues to reduce the deficit. They're paid well to dole that out to special interests.
I'm glad to see you think Reagan was a hero. Trump may well go down in history as a hero, too. At least he's trying to fix things that the Democratic and Republican establishments both don't really want fixed. That's more than the presidents in between the two, from both parties, have tried to do.

That will happen eventually. Post Oak started out as a suburban boulevard but has been slowly urbanizing, particularly in the last 20 years or so.
Matter of fact, looking at the size of that shopping center on a map, it wouldn't surprise me at all if it got redeveloped into a city centre type multi-use setup. It's a huge piece of land in one of the busiest parts of Houston.